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Finding the Fourth Proportional to 267,438.93, 401,218.95 and 89,941.07

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Solution

The fourth proportional to 267,438.93, 401,218.95 and 89,941.07 is: 134,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,438.93 : 401,218.95 = 89,941.07 : x
  2. Step 2: Convert to fraction form
    267,438.93/401,218.95 = 89,941.07/x
  3. Step 3: Cross multiply
    267,438.93x = 401,218.95 × 89,941.07
  4. Step 4: Simplify right side
    267,438.93x = 36,086,059,661.18
  5. Step 5: Solve for x
    x = 36,086,059,661.18/267,438.93
  6. Step 6: Final answer
    x = 134,931.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.